Safety-guard for elevator-hatchways



(No Model.)

E. G. KENDALLl SAFETY GUARD FOR ELEVATOR HA'I'GHWAYS.

No. 267,541. Patented Nov,- 14. 1882'.

N. PEIEHS, Phuxwumognlur. wmhingmn, ma

'1), secured at lparticularly in Fig. 2, and by its other arm, g,

STATES PATENT Trice- NrTa rv-GUARD Foa ELEvAToR-HATCHWAYS.

SAF

SFECIFICATION forming part of Letters Patent No. 267,541, dated November 14, 1882.

Application filed March 3l, 1882. (No model.)

H is a vertical extension of the platform C, at one side of thesame, near its'froiit edge, and in such a position relatively to the lever F that in the travel of the elevator up and down through the hatchway the'edge or side m of the extension will bear and press against the side a ofthe lower arm, f, ot' the lever F, and, swinging it on its fulci'um, swing the up- )erlever,forthepurposeshercinai'terdescribed.

l at o on the back side gate, and in such manner that the gravity of the pawl, when it is left free to swing on its pivot, will swing its lower end from and beyond the end of the gate in line with the upper end of thele'ver Gr when such lever is swung iii the right direction therefor.

When the elevator is at or near the floor its To all whom it may concern Beit known that I, EDWARD G. KENDALL, of Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Safety-Guards for Elevator-Hatchways, of which the following is a full, clear, and exact description.

This invention relates to improvements in self-closing hatchway-guards, ranged to operate automatically by the elevator as it moves from the floor in either direction in its travel through the hachway or opening.

My invention consists in a novel combination of gate arranged to slide vertically on guideways, with a verticallypivoied lever, having its upper end provided with means to engage and retain the gate in an elevated position, while the lower end of the lever is diextension H presses on the lower arm, j, of lerectl acted on by the elevator-platform, all as ver F, and, swinging it, causes the upper end, more fully hereinafter described, and pointed p of lever G to be swung forward into such out in the claims.

position tliatif the gn ard or gate be then raised ln the accompanying plate of drawings this it will be there held in such raised position by invention is illustrated, Figure lbeing a vertical section of an elevator hatchway or openthe pawl J, resting on the upper end of lever ing in a floor and the surrounding casing,

G, being there held as long` -as the elevatorplattorm is at or near the door and the extenlooking toward the guard or gate from the sion H in contact with the arm f of lever F. hatchway or opening, the guard beingin its elevated position. Fig. 2 is a detail vertical The pin q iu the gate and slot fr in the pawl regulate the movements of the pawl, either to section at right angles to Fig. l, the elevator above the door, and the gate in position to hold the pawl in its rest on the lever or to al- ;low it to move sufficiently to freely pass the guard the elevator hatchway or opening. Fig.

3 is a horizontal section on line 3 8, Fig. 2.

lever if the guard is raised when the elevatorplatform is at the door. When the elevator In the accompanying plate of drawings, represents the oor of a building, having an leaves going up or down elevator hatchway or opening, B, in which is the iioor in either and the extension passes from contact with arranged to travel in any of the usual ways the elevator-platform C.

the lever F, then, by the reaction of a spiral D is the guard or gate. This guard or gate spring, K, secured by one end. to the arm j of lever F and by its other end to the casing, the

D is arranged to be raised and lowered in front of the hatchway or opening B, and in such lever F will be swung on its pivot and cause the upper lever, Gr,to disconnect with the pawl movements it is guided by grooves a in plates each end of the gate or guard D,

on the gate, which will then by its own weight are adapted to slide on the vertical strips to the casing E in proper poof and at one end fall to its position to guard and protect the hatchway or opening. The spring K holds the arm f of lever F in proper position for the extension H of the platform to strike and bear against it, as described. By this arrangement of the levers F and Gr with the spring the guard will only be held in its elevated position when the elevator is at the door or near to bear and press -lever F. Consequently down and which or ribs c, secured sition therefor.

F is a lever pivoted to the casing E at d, at one corner of the hatchway B, its lower arm, extending into the hatchway, as shown more enough for its extension against the sprin when the elevator has passed np or it engages with the lower end, h, of a vertical lever, Gr, pivoted at i to the side casin g.

JSG

left the hatchway or opening in the floor, so lower end ofthe main lever is acted ou by the 4o far as it is concerned, unguarded and open, elevator-platform. the guard or gate D will have fallen to its lower 3. rIlhe combination, substantially as hereinposition, and thus have covered and guarded before described, ot' a sliding gate or guard, a 5 the hatchway or opening, whereby all liability pivoted lever having a curved end projecting of any person accidentally falling down the in the path of the elevator-platform,and at its 45 same is prevented. other end provided with a pivoted lever, which To prevent the gate from falling too sudis tilted to engage the gate or guard by the denly a weight, L, arranged to travel in the direct action of the elevator-platibrm on the 1o easing E, is attached to one end of a cord, t, curved end ofthe main lever.

which cord runs over pulleys u and u and oo net. In combination withan elevator-platform, 5o neets byits otherend with the gate D,enabling C, a guard, D, adapted to be raised or lowthe gate to be adjusted to fall as desired. ered in suitable guideways, and levers F and l do not wish to be understood as broadly G, one, F, of which levers is in thepath ofthe 15 claiming seltclosing hatchway-doors and auplatform, and the other of said levers is artomatically-operateddevicestorretainingsuch ranged to engage with said guard, said lever 55 doors open during the time the platform is Gr being normally out of engagement with the stopped at such doors, but guard and thrown into engagement therewith Having thus described inyinveution,what I by the movement ot' the platform, substan- 2., claim, and desire to secure by Letters Patent, tially as and for the purpose specified.

is` 5. In combination with an elevator-platform 6o l. The combination, substantially as here having an extension, H, a guard adapted to be in before described, of a vertically-sliding gate raised and lowered in suitable guideways, leor guard, D, and a lever pivoted in a vertical vers Fand G, one ofwhich levers is in the path plane, with its lower end projecting in the of an extension of said ele 'ator, and the other b path of the elevator-platform and its upper of" said levers 1s arranged to engage with the 65 end provided with means to retain the gate or guard, said levers being normally out of enguard iu an elevated position while the lower gagement with the guard and thrown into ent end of the lever is operated on by the platgagement therewith by the movement of the 5o form in its ascent or descent. platform and said extension, substantially as 2. rlhe combination, substantially as hereinand f'or the purpose specified. 7o before described, of a vertically-sliding gate In testimony whereof' I have hereunto set or guard and guideways for the edges thereof, my hand in the presence of two subscribing with a lever pivoted in a vertical plane, and witnesses. 3 having its lower end arranged to be directly Y, r T Y. 5 acted on by the elevator-platform, and its up- E (r' IULADALL' per end provided with a pivoted secondary Witnesses: lever operated to engage and sustain the gate EDWIN XV. BROWN,

or guard in an ele 'ated position when the WM. S. BELLOWs.' 

